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https://issues.apache.org/jira/browse/HDFS-11534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15940958#comment-15940958
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Xiaobing Zhou commented on HDFS-11534:
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Moved it out. Good catch, thanks.
> Add counters for number of blocks in pending IBR
> ------------------------------------------------
>
> Key: HDFS-11534
> URL: https://issues.apache.org/jira/browse/HDFS-11534
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs
> Reporter: Xiaobing Zhou
> Assignee: Xiaobing Zhou
> Attachments: HDFS-11534.000.patch, HDFS-11534.001.patch,
> HDFS-11534.002.patch, HDFS-11534.003.patch, HDFS-11534.004.patch
>
>
> IBR can be sent in batch. For the sake of diagnosis, it's helpful to
> understand work load of pending queue, e.g. how many blocks as total, how
> many blocks in status of RECEIVING_BLOCK, RECEIVED_BLOCK, and DELETED_BLOCK,
> respectively. Also the metrics can be exposed to JMX.
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